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In the science exhibit of a museum of natural history, a coin-flipping machine tosses a silver dollar into the air and tallies the outcome on a counting device. What are all of the respective possible outcomes in any three consecutive coin tosses? In any three consecutive coin tosses, what is the probability of: a) at least one head, b) not more than one head, c) at least two heads, d) not more than two heads, e) exactly two heads, f) exactly three heads.
A scatterplot shows a set of data points that are clustered close to a line that slopes down to the right. Which of the following values would be closest to the correlation for these data?
The probability that a call-centre consultant receives 3 calls during any given hour is 0.1404 and the probability that the consultant receives 5 calls during any given hour is 0.1755. Assuming that the calls are Poisson-distributed, calculate the p..
paul is conducting a study on the dollar value of orders placed with various suppliers. a sample of 10 orders showed
the inflection points of a bell curve are at x 40 and x 52. what is the area under the bell curve between the
Suppose the people living in a city have a mean score of 48 and a standard deviation score of 7 on a measure of concerns about the environment.
Use this information to set up a 90 percent confidence interval for the proportion, p of all US workers who play hooky.
consider the following data on the number of beers consumed by 10 football fans during a recent game 4 2 6 3 5 0 2 1 8
compute the correlation coefficient for the data belowx values -5 -1 1 2y values 3 -1 -3 3a 0.641b 0.453c - 0.411d -
according to chebychevs theorem what percentage of a distribution will be within k 3.2 standard deviations of the
Two Sun City had a population of 15,000 in 1985. It was then that Two Sun’s population growth began to rise at a rate of 600 people every year. Based on this model, respond to the following
The regular fuel consumption is based on the plane carrying the minimum amount of fuel. If more than this is carried, the amount of fuel consumed is higher. Specifically, for each 1,000 gallons of fuel above the minimum, 5% (or 50 gallons per 1,000 g..
an investment company pays 6 compounded semiannually. you want to have 12000 in the future.a how much should you
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